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Finding the Fourth Proportional to 276,466.73, 414,755.46 and 86,974.79

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Solution

The fourth proportional to 276,466.73, 414,755.46 and 86,974.79 is: 130,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,466.73 : 414,755.46 = 86,974.79 : x
  2. Step 2: Convert to fraction form
    276,466.73/414,755.46 = 86,974.79/x
  3. Step 3: Cross multiply
    276,466.73x = 414,755.46 × 86,974.79
  4. Step 4: Simplify right side
    276,466.73x = 36,073,269,034.85
  5. Step 5: Solve for x
    x = 36,073,269,034.85/276,466.73
  6. Step 6: Final answer
    x = 130,479.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.